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ByKaranteli

ByKaranteli X402 API

Per-call priced history and depth endpoints, settled in USDC over the x402 protocol on Solana and Base mainnet through the Coinbase CDP facilitator. 13 priced endpoints plus the free catalog at /api/x402, which is the authoritative price list. Verified 2026-08-11: the catalog lists 13 endpoints from $0.002 to $0.010, and a priced endpoint returns HTTP 402. These sell depth and history, never access.

Documentation Provider Profile APIs.io OpenAPI GitHub

ByKaranteli X402 API is one of 2 APIs that ByKaranteli publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include x402. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 14 operations across 14 paths. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://bykaranteli.com.

14 operations 14 paths 0 schemas 14 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://bykaranteli.com
Contact
https://bykaranteli.com/developers
License
Data: CC0 for published datasets
Resource Areas
1

Paths & Operations 14

Across 14 paths, the API surfaces 14 operations — 14 GET. Each is listed below with its method, path, parameters, and response codes.

X402 14
GET
/api/x402
Free machine-readable catalog of the paid endpoints
x402Catalog → 200
GET
/api/x402/liqmap-levels
Full multi-exchange liquidation map snapshot for a Binance USDT-M perp: modeled leverage clusters, real forceOrder levels, top magnets, funding, OI and orderbook context.
liqmap-levels → 200402
GET
/api/x402/options-flow
BTC or ETH options tape depth from recorded Deribit flow: daily premium-flow history plus the full big-print list.
options-flow → 200402
GET
/api/x402/flow-vpin
Order flow toxicity (VPIN) history for BTC, ETH and SOL: 90-day daily track plus the last 500 volume buckets.
flow-vpin → 200402
GET
/api/x402/premium-history
Daily Coinbase premium history: the Coinbase versus offshore price spread per day, the classic read on United States spot demand, with both leg prices.
premium-history → 200402
GET
/api/x402/cot-history
Full CFTC Commitments of Traders weekly history for crypto futures: dealer, asset manager, leveraged fund, other reportable and non reportable long and short positions plus open interest per report.
cot-history → 200402
GET
/api/x402/liquidations-raw
Individual liquidation events recorded from our own exchange sockets across Binance, Bybit and OKX: side, price, quantity, notional, venue and millisecond timestamp.
liquidations-raw → 200402
GET
/api/x402/oi-history
Five minute open interest history for the major perpetuals in base units and USD, normalised across symbols and retained on our side, so one query replaces per-symbol paginated pulls against exchange…
oi-history → 200402
GET
/api/x402/funding-history
Settled funding rate history per symbol and venue, the series behind carry and basis work.
funding-history → 200402
GET
/api/x402/options-oi-history
Daily listed options open interest per instrument: strike, expiry, option type, open interest, mark implied volatility, underlying price and traded notional.
options-oi-history → 200402
GET
/api/x402/dvol-history
Daily implied volatility index history for BTC and ETH going back to 2021, the crypto equivalent of a VIX series.
dvol-history → 200402
GET
/api/x402/slippage-history
Hourly recorded execution slippage ladders per symbol: what a given order size would actually cost against the live book at that hour.
slippage-history → 200402
GET
/api/x402/listings-history
Perpetual listing and delisting events across six exchanges with first seen, last seen and delisted timestamps per instrument, the record behind listing driven volatility studies.
listings-history → 200402
GET
/api/x402/spot-microstructure
Minute bars with the taker buy versus total quote volume split, pre-joined across venues and kept beyond exchange retention: the raw input behind order flow imbalance and VPIN work, in one query inst…
spot-microstructure → 200402

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

bykaranteli-x402-api-openapi.yml Raw ↑

Other APIs ByKaranteli publishes across the network.

ByKaranteli Public API
AE Profile APIs.io
#x402
← Back to B APIs
API Details
ID
bykaranteli:bykaranteli-x402-api
Base URL
https://bykaranteli.com
Docs
https://bykaranteli.com/developers
Provider
ByKaranteli
APIs.io →  GitHub →
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